Benzyl chloride. Benzyl chloride, or Î±-chlorotoluene, is an organic compound with the formula C6H5CH2Cl. This colourless liquid is a reactive organochlorine compound that is a widely used chemical building block.
Two slits are illuminated with red light (Î» = 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central.
The best way I can think of to understand MOA at distance is to think of a laser pointer run through the barrel of your rifle. If you began with the laser dot on the center of the X-ring of a target standing at 100 yards and the barrel angle was increased 1 MOA, the dot would then be about one inch high at 100 yards.